Lipids & metabolic liver disease
Effects of Hypertriglyceridemia With or Without NEFA Elevation on β-cell Function and Insulin Clearance and Sensitivity
Authors' conclusion
In healthy nonobese subjects, mild acute hypertriglyceridemia directly reduces glucose tolerance and insulin sensitivity and clearance, and has selective and opposite effects on β-cell function that are neutralized by NEFAs. These findings provide new insight into plausible biological signals that generate and sustain insulin resistance and chronic hyperinsulinemia in the development of T2D.
Study context
- Population
- Healthy lean volunteers without diabetes
- Participants
- 22 volunteers
- Comparison
- Intralipid with or without heparin vs saline infusion
- Intralipidn = 12
- I + Hn = 10
- Outcome
- Glucometabolic effects in fasting conditions and during OGTT
Methodological detailssaline-controlled, 5-hour intravenous infusions
- Saline-controlled
- 5-hour intravenous infusions
Main finding
As reported in the abstract
- Fasting: both lipid infusions increased plasma insulin and insulin secretion rate (ISR) and reduced insulin clearance, without affecting plasma glucose and insulin sensitivity
- Fasting effects on insulin and ISR more pronounced for I + H than Intralipid alone
- OGTT: lipid infusions markedly impaired glucose tolerance, increased plasma insulin and ISR, and decreased insulin sensitivity and clearance, without significant group differences
- Intralipid alone inhibited β-cell glucose sensitivity and increased β-cell potentiation; I + H had neutral effects on these β-cell functions
Original publication
Effects of Hypertriglyceridemia With or Without NEFA Elevation on β-cell Function and Insulin Clearance and Sensitivity. J Clin Endocrinol Metab. Published 18 April 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →